Inventor · disambiguated record
Fufang Zha
Also filed as: ZHA FUFANG
38 granted patents·22 pending applications·1,538 citations·filing 1998–2019
98Inventor score
Files withZHA FUFANG15US FILTER WASTEWATER GROUP INC10SIEMENS INDUSTRY INC6SIEMENS WATER TECH CORP6CHEIL IND INC2
Top patents by PatentIndex Score
60 records- 0198US7223340B2Hollow fibre restraining systemUS FILTER WASTEWATER GROUP INC·Filed 2005·Granted May 29, 2007·66 cites·15 claims
- 0298US6641733B2Apparatus and method for cleaning membrane filtration modulesUS FILTER WASTEWATER GROUP INC·Filed 2002·Granted Nov 4, 2003·106 cites·35 claims
- 0398US6555005B1Scouring methodUSF FILTRATION & SEPARATIONS·Filed 1999·Granted Apr 29, 2003·172 cites·23 claims
- 0498US6524481B2Apparatus and method for cleaning membrane filtration modulesUS FILTER WASTEWATER GROUP INC·Filed 2001·Granted Feb 25, 2003·182 cites·32 claims
- 0598US6156200AGas-scrubbed hollow fiber membrane moduleUSF FILTRATION & SEPARATIONS·Filed 1998·Granted Dec 5, 2000·201 cites·5 claims
- 0697US7591950B2Submerged cross-flow filtrationSIEMENS WATER TECH CORP·Filed 2006·Granted Sep 22, 2009·65 cites·19 claims
- 0797US6969465B2Scouring methodUS FILTER WASTEWATER GROUP INC·Filed 2002·Granted Nov 29, 2005·75 cites·10 claims
- 0897US6841070B2Apparatus and method for cleaning membrane filtration modulesUS FILTER WASTEWATER GROUP INC·Filed 2004·Granted Jan 11, 2005·100 cites·35 claims
- 0996US7931463B2Apparatus for potting membranesSIEMENS WATER TECH CORP·Filed 2005·Granted Apr 26, 2011·52 cites·12 claims
- 1096US7850851B2Biological phosphorus removalSIEMENS WATER TECH CORP·Filed 2006·Granted Dec 14, 2010·48 cites·6 claims
- 1196US6821420B2Apparatus and method for cleaning membrane filtration modulesUS FILTER WASTEWATER GROUP INC·Filed 2003·Granted Nov 23, 2004·75 cites·42 claims
- 1296US6783008B2Hollow fibre restraining systemUS FILTER WASTEWATER GROUP INC·Filed 2002·Granted Aug 31, 2004·78 cites·12 claims
- 1395US7862719B2Square membrane manifold systemSIEMENS WATER TECH CORP·Filed 2005·Granted Jan 4, 2011·56 cites·22 claims
- 1494US6962258B2Hollow fiber restraining systemUS FILTER WASTEWATER GROUP INC·Filed 2004·Granted Nov 8, 2005·57 cites·32 claims
- 1592US8372276B2Membrane cleaning with pulsed airlift pumpSIEMENS INDUSTRY INC·Filed 2011·Granted Feb 12, 2013·9 cites·10 claims
- 1692US6974554B2Potting methodPALL SEITZSCHENK FILTERSYSTEMS·Filed 2003·Granted Dec 13, 2005·80 cites·14 claims
- 1791US8287743B2Membrane cleaning with pulsed airlift pumpZHA FUFANG·Filed 2010·Granted Oct 16, 2012·16 cites·28 claims
- 1891US7655142B2Dynamic control of membrane bioreactor systemSIEMENS WATER TECH CORP·Filed 2006·Granted Feb 2, 2010·20 cites·5 claims
- 1988US8518256B2Membrane moduleCOX DAVID JOHN·Filed 2011·Granted Aug 27, 2013·12 cites·10 claims
- 2087US8622222B2Membrane cleaning with pulsed airlift pumpZHA FUFANG·Filed 2008·Granted Jan 7, 2014·10 cites·19 claims
- 2181US8652331B2Membrane system backwash energy efficiencyZHA FUFANG·Filed 2009·Granted Feb 18, 2014·10 cites·16 claims
- 2281US8048306B2Scouring methodSIEMENS INDUSTRY INC·Filed 2005·Granted Nov 1, 2011·5 cites·24 claims
- 2379US9206057B2Membrane cleaning with pulsed airlift pumpEVOQUA WATER TECHNOLOGIES LLC·Filed 2014·Granted Dec 8, 2015·2 cites·20 claims
- 2479US8840783B2Water treatment membrane cleaning with pulsed airlift pumpSIEMENS INDUSTRY INC·Filed 2013·Granted Sep 23, 2014·2 cites·10 claims
- 2576US8790515B2Reduction of backwash liquid wasteZHA FUFANG·Filed 2005·Granted Jul 29, 2014·7 cites·15 claims
- 2672US2020078741A1Membrane cleaning with pulsed airlift pumpEVOQUA WATER TECH LLC·Filed 2019·Application pending·0 cites
- 2771US10828607B2Aerator device, filter system including an aerator device, and method of aerating a filter using an aerator deviceCHEIL IND INC·Filed 2013·Granted Nov 10, 2020·3 cites·15 claims
- 2871US9764288B2Membrane module protectionSIEMENS INDUSTRY INC·Filed 2013·Granted Sep 19, 2017·2 cites·19 claims
- 2967US10507431B2Membrane cleaning with pulsed airlift pumpEVOQUA WATER TECH LLC·Filed 2017·Granted Dec 17, 2019·0 cites·14 claims
- 3064US9675938B2Chemical clean for membrane filterZHA FUFANG·Filed 2006·Granted Jun 13, 2017·1 cites·23 claims
- 3164US8956464B2Method of cleaning membranesZAUNER PETER·Filed 2010·Granted Feb 17, 2015·2 cites·24 claims
- 3263US8377305B2Continuously variable aerationSIEMENS INDUSTRY INC·Filed 2005·Granted Feb 19, 2013·2 cites·14 claims
- 3362US8372282B2Mixing chamberSIEMENS INDUSTRY INC·Filed 2003·Granted Feb 12, 2013·11 cites·32 claims
- 3459US2007209993A1Hollow fibre restraining systemZHA FUFANG·Filed 2006·Application pending·0 cites
- 3558US8512568B2Method of cleaning membrane modulesZHA FUFANG·Filed 2009·Granted Aug 20, 2013·1 cites·14 claims
- 3657US9573824B2Membrane cleaning with pulsed airlift pumpJAMES GERIN·Filed 2013·Granted Feb 21, 2017·0 cites·20 claims
- 3754US8268176B2BackwashJOHNSON WARREN THOMAS·Filed 2004·Granted Sep 18, 2012·5 cites·24 claims
- 3853US2006000775A1Scouring methodUS FILTER WASTEWATER GROUP INC·Filed 2005·Application pending·0 cites
- 3952US2012187044A1Methods of cleaning membrane modulesZHA FUFANG·Filed 2012·Application pending·0 cites
- 4050US9675936B2Hollow fiber membrane moduleCHEIL IND INC·Filed 2013·Granted Jun 13, 2017·0 cites·6 claims
- 4149US2010170847A1Membrane cleaning using an airlift pumpZHA FUFANG·Filed 2008·Application pending·0 cites
- 4248US2005109692A1Apparatus and method for cleaning membrane filtration modulesFiled 2004·Application pending·0 cites
- 4348US2010200503A1Cleaning method for simple filtration systemsZHA FUFANG·Filed 2008·Application pending·0 cites
- 4448US2010051545A1Membrane module protectionJOHNSON WARREN THOMAS·Filed 2008·Application pending·0 cites
- 4548US2010012585A1Membrane filtration process and designZHA FUFANG·Filed 2008·Application pending·0 cites
- 4647US2004168979A1Scouring methodFiled 2004·Application pending·0 cites
- 4747US2004145076A1Scouring methodFiled 2004·Application pending·0 cites
- 4846US11524264B2Aerator device and filter system including the sameSAMSUNG SDI CO LTD·Filed 2014·Granted Dec 13, 2022·0 cites·8 claims
- 4946US2004084369A1Scouring methodUS FILTER WASTEWATER GROUP INC·Filed 2003·Application pending·0 cites
- 5046US2003178365A1Scouring methodFiled 2003·Application pending·0 cites
Showing the top 50 of 60 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →